Oscillating engine



UNTED STATES PATENT OFFICE.

A. B. LATTA, OF CINCINNATI, OHIO.

OSCILLATING ENGINE.

Specification of Letters Patent No. 10,119, dated October 11, 1853.

To @ZZ whom t may concern:

Be it known that I, ALEXANDER B. LATTA, of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful improvement, which I denominate an Independent Eccentric Oscillating Valve-Motion, which is described as follows, reference being had to the annexed drawings of the same, making part of this speciication.

Figure 1 is a side elevation with a part of the frame taken away, and also a part of the steam chamber, so as to show the steam ways and method of communicating the eccentric to the valves. F ig. 2 is the end view of the above with frame removed, to show steam chest bar A to which eccentric and valves are attached with a curved slo-t which may be used to shorten the throw ot valves, by moving the wrist out to one side. Fig. 3 is a section of cylinder showing the form of the steam pipe B in Fig. l, by which means the point where the steam pipe is to be attached is brought to the center of the trunnion.

The nature of this invention and improvement, consists in so arranging the valve chambers D Outside of bearing or trunnion E. By this arrangement the eccentric rod F is allowed to pass across the center of the trunnion E, thereby communicating with the slide bar A to which the valves are attached and thereby giving independent motion to the valves, regardless of the oscillating of the cylinder.

The steam pipe B is so formed as not to interfere with the eccentric rod F as will be seen in Fig. 3.

The sliding bar A in Fig. 2 has a curved slot where the wrist pin is attached, which may be used t0 shorten the throw of valves, but it is not an essential appendage. The steam enters pipe B and then enters the chest, thence to cylinder-does its work, and then into the passage which leads to the trunnion-thence around the cylinder and out of the trunnion L.

lThe mode of operating this engine is the same as any other engine, the adjustments are to be set in the same way as a stationary cylinder, the setting of the valves in every way the same.

What I claim as my invention and desire to secure by Letters Patent isw 1. The mode of arranging the valve chambers, outside of the bearing or trunnion on which the cylinder oscillates, in such manner as to allow the wrist pin of the eccentric rod to move equally across the center of the trunnion, and moving equally above and below, and thereby giving motion to the valve or valves, by said eccentric, independently of the oscillating of the cylinder.

2. I also claim the sliding bar or bars, to which the eccentric is attached and passing up the whole length of the valve chambers to the end or ends as the case may be and attached to the valve rods, thereby giving motion to the valves. I claim this arrangement as set forth by drawings or their mechanical equivalents.

A. B. LATTA.

Witnesses IV. CHnDsnY, Jos. SERODINN. 

